Bonding configuration

RE: Bonding configuration

Amanda Hsieh — Wed, 29 Jul 2020 10:04:29 GMT

Hi Arsenii,

Sorry for the delay. The support staff is reduced during the summer holidays, and you may experience delayed answers.

Not sure I understand the question, but I think you will get a disconnection because of GATTC Timeout.

-Amanda H.

RE: Bonding configuration

Ars Morozov — Thu, 23 Jul 2020 18:14:36 GMT

Thank you for the answer and sorry for late reply (I don't enable e-mail notifications).
[quote userid="77782" url="~/f/nordic-q-a/63538/bonding-configuration/259439"][/quote]

3) How information about subsribtions is stored? Is it possible that on the smartphone only this information will be removed (not all bonding data), but on device it remains?

I don't understand the question. Please elaborate on more detail.

My question is, is it possible that gattc cache will be removed from smartphone. So, all subscriptions will be removed from one side. But the other side still think that smartphone subscribed on some characteristics. What will be in this case?

RE: Bonding configuration

Amanda Hsieh — Fri, 10 Jul 2020 12:27:58 GMT

Hi Arsenii,

[quote user=""]1) Which type of connection I need to have fastest connection step without necessity for discovering services and characteristics and subscribing on the characteristics each time? Without security requirements.[/quote]

You can use Just Works bonding. See Heart Rate Application. You can enable nRFConnect AutoConnect. It will autoconnect when the device is powered on/off if the nRFConnect keeps the services and characteristics in the device cache.

[quote user=""]2) I assume that "Just Work" is suitable for 1st question, If yes, I have another question. If central and peripheral are bonded and then on one side bonding information will be removed, how can other side know that bonding information was removed and handle this without disconnection?[/quote]

You will get the error coming from the peer manager when one side lost the bonding information if you don't handle it like delete peer data or allow repairing. When one side deletes the bond information, it will cause the disconnection. That's cannot avoid.

[quote user=""]3) How information about subsribtions is stored? Is it possible that on the smartphone only this information will be removed (not all bonding data), but on device it remains?[/quote]

I don't understand the question. Please elaborate on more detail.

-Amanda H.

RE: Bonding configuration

Amanda Hsieh — Thu, 09 Jul 2020 13:39:13 GMT

Hi Arsenii,

I am working on your case and will reply later.

The support staff is reduced during the summer holidays, and you may experience delayed answers.

-Amanda H.